Seeking Advice for Prolonged Menstrual Bleeding

I've been on my period for 22 days. I've been regular ever since I started getting periods -> 7 days each time without fail, about the same time every month. I started birth control because I have super bad cramping and wanted it to stop. My period got shorter but my bleeding and cramping was worse; However, It still stayed in the 5-6 day range without any other irregularities. I had to switch because of the pain it was causing and my periods stayed short but the cramps were still there and I kept getting super sick the day I started bleeding. My period stayed regular but recently I had a period that was 10 days long. That was about 2 periods ago. After that one I had a 5 day period and I decided to just take my pills straight through to miss my period and get rid of cramps and bleeding overall. I didn't have my period for 3 months (but I did experience cramping when it was supposed to start)... THEN IT JUST RANDOMLY STARTED, and now I've been on it for 22 days. I talked to my general doctor who switched my birth control to a seasonal birth control so it works better when skipping, and I talked to my Endocrinologist who had me take 3 pills, then 2 pills, then she said just take them normally. So I followed her schedule, then I switched to the new birth control that Sunday. It lightened it but it's still here. Now it's like every morning it's over but then halfway through the day it comes back full force. What do I do???